https://www.mesto-zruc.cz/js/funkce.js?v=v6.5.0e

1function zoom(myImage, myWidth, myHeight)
2{
3	myLeft = (window.screen.width - myWidth ) / 2 ;
4	myTop = (window.screen.height - myHeight ) / 2;
5	myWidth = myWidth + 6;
6	myHeight = myHeight + 6;
7
8	myWindow = window.open("","popup","height="+myHeight+"px,width="+myWidth+"px,left="+myLeft+"px,top="+myTop+"px,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes");
9
10	myWindow.document.write("<!DOCTYPE html>\n");
11	myWindow.document.write("<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title>Preview</title>\n\t</head>\n");
12	myWindow.document.write("<style type=\"text/css\">\nhtml, body {\nbackground: Black;\nmargin: 0;\npadding: 0;\ntext-align: center;\n}\nimg {\nborder: 0;\n}\n</style>\n");
13	myWindow.document.write('<script> var NS = (navigator.appName=="Netscape")?true:false;var viewportwidth=0;var viewportheight=0;function getViewport () {	if (typeof window.innerWidth != \'undefined\') { viewportwidth = parseInt(window.innerWidth); viewportheight = parseInt(window.innerHeight); } else if (typeof document.documentElement != \'undefined\' && typeof document.documentElement.clientWidth != \'undefined\' && document.documentElement.clientWidth != 0){	viewportwidth = parseInt(document.documentElement.clientWidth);viewportheight = parseInt(document.documentElement.clientHeight);}	else { viewportwidth = parseInt(document.getElementsByTagName(\'body\')[0].clientWidth); viewportheight = parseInt(document.getElementsByTagName(\'body\')[0].clientHeight); }}');
14	myWindow.document.write('function FitPic() {getViewport();if (viewportwidth==0 || viewportheight==0) return; iWidth = viewportwidth;iHeight = viewportheight;iWidth = document.images[0].width - iWidth;iHeight = document.images[0].height - iHeight;window.resizeBy(iWidth, iHeight);if (iWidth!=0 || iHeight!=0) { getViewport(); iWidth = viewportwidth;iHeight = viewportheight;myLeft = (window.screen.width - document.images[0].width ) / 2 ;myTop = (window.screen.height - document.images[0].height) / 2; window.moveTo(myLeft,myTop);} window.focus();};</script>');
15	myWindow.document.write("\t<body onload=\"FitPic();window.focus();\">\n");
16	myWindow.document.write("\t\t<a href=\"#\" onclick=\"parent.close();\" title=\"Zavřít okno\"><img src=\""+myImage+"\" alt=\"Preview\"></a>\n");
17	myWindow.document.write("\t</body>\n</html>");
18	myWindow.document.close();
19 	myWindow.focus();
20	return myWindow;
21}
22
23
24function SPUWC(sAdresa, iSirka, iVyska,bScroll)
25{
26	iMyWidth = (screen.availWidth - iSirka ) / 2 ;
27	iMyHeight = (screen.availHeight - iVyska ) / 2;
28	if (bScroll)
29		sScroll='yes';
30	else
31		sScroll='no';
32	return window.open(sAdresa, '', 'width='+iSirka+'px, height='+iVyska+'px, left=' + iMyWidth + ',top=' + iMyHeight + ', resizable=yes, titlebar=no, status=yes, address=no, scrollbars='+sScroll+', dependent=yes, modal=yes');
33}
34
35function ShowPopUpWindowCenter(sAdresa, iSirka, iVyska)
36{
37	if (iSirka<150)
38		iSirka=150;
39	return SPUWC(sAdresa, iSirka, iVyska,false);
40}
41
42function ShowPopUpWindowCenterScroll(sAdresa, iSirka, iVyska)
43{
44	return SPUWC(sAdresa, iSirka, iVyska,true);
45}
46
47function showhide(id)
48{
49	sclass="hidden";
50	oEl=document.getElementById(id);
51	if (cls.has(oEl,sclass)==true)
52	  cls.remove(oEl,sclass);
53	else
54	  cls.add(oEl,sclass);
55	return false;
56}
57
58function ShowPopUpWindowFullScreen(sAdresa)
59{
60	var iSirka=screen.availWidth;
61	var iVyska=screen.availHeight;
62	var iZacatekX = 0;
63	var iZacatekY = 0;
64	var bAutoClose = true;
65  oWindow=window.open(sAdresa,'','scrollbars,width='+iSirka+',height='+iVyska);
66  if (!oWindow)
67   	return oWindow;
68   	
69  oWindow.blur();
70  window.focus(); 
71  oWindow.moveTo(iZacatekX,iZacatekY);
72  oWindow.resizeTo(iSirka,iVyska);
73
74  oWindow.focus();   
75  if (bAutoClose)
76    window.onunload = function(){oWindow.close()}
77
78  return oWindow;
79}